Sad, scary and erotic all at once, Berry's Oscar-winning performance atop Billy Bob Thornton was so realistic it left some cinemagoers wondering if it was, in fact, simulated. "I would only do it if Billy Bob agreed to be as naked as I was" recalls Berry.

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Joan Allen (Pleasantville)

As repressed 1950s housewife Betty Parker, Joan Allen flies solo in the bathtub -- and experiences an orgasm so intense it turns black and white into colour and causes a tree in the front yard to burst into flames. Beat that ladies.

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Diane Lane (Unfaithful)

Playing the adultress wife of Richard Gere, Lane lets loose in a public loo (among other places) with French fancy Olivier Martinez. "It took a lot out of me," she reveals of shooting the movie's many energetic romps. "It was like having a baby."